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NFS: Refactor NFS access to kernel access mask calculation

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Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
This commit is contained in:
Trond Myklebust 2017-07-11 17:54:32 -04:00 committed by Anna Schumaker
parent 3ffbc1d655
commit 15d4b73ac2
1 changed files with 23 additions and 8 deletions
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31
fs/nfs/dir.c
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@ -2375,16 +2375,31 @@ void nfs_access_add_cache(struct inode *inode, struct nfs_access_entry *set)
}
EXPORT_SYMBOL_GPL(nfs_access_add_cache);
#define NFS_MAY_READ (NFS4_ACCESS_READ)
#define NFS_MAY_WRITE (NFS4_ACCESS_MODIFY | \
NFS4_ACCESS_EXTEND | \
NFS4_ACCESS_DELETE)
#define NFS_MAY_LOOKUP (NFS4_ACCESS_LOOKUP)
#define NFS_MAY_EXECUTE (NFS4_ACCESS_EXECUTE)
static int
nfs_access_calc_mask(u32 access_result)
{
int mask = 0;
if (access_result & NFS_MAY_READ)
mask |= MAY_READ;
if (access_result & NFS_MAY_WRITE)
mask |= MAY_WRITE;
if (access_result & NFS_MAY_LOOKUP)
mask |= MAY_EXEC;
if (access_result & NFS_MAY_EXECUTE)
mask |= MAY_EXEC;
return mask;
}
void nfs_access_set_mask(struct nfs_access_entry *entry, u32 access_result)
{
entry->mask = 0;
if (access_result & NFS4_ACCESS_READ)
entry->mask |= MAY_READ;
if (access_result &
(NFS4_ACCESS_MODIFY | NFS4_ACCESS_EXTEND | NFS4_ACCESS_DELETE))
entry->mask |= MAY_WRITE;
if (access_result & (NFS4_ACCESS_LOOKUP|NFS4_ACCESS_EXECUTE))
entry->mask |= MAY_EXEC;
entry->mask = nfs_access_calc_mask(access_result);
}
EXPORT_SYMBOL_GPL(nfs_access_set_mask);